Create a new header lwp_private.h to contain _lwp_getprivate_fast,
_lwp_gettcb_fast, _lwp_settcb and remove them from mcontext.h, so that:
1. we don't need special hacks to hide them
2. we can include <lwp.h> where needed to get the necessary prototypes
without redefining them locally.

Undo previous lwp.h change.

Split __lwp_getprivate_fast and __lwp_*tcb from mcontext.h into a separate
lwp.h file.

branches: 1.13.2;
allow things to compile again

Fix for last checkin, don't try use non-existent register from a (currently) dummy struct

Allow kernel to compile by preventing "error: stack usage is ..."
too-large errors. What was there previously was not correct and this
will need to be revisited for debugger to ever become functional
anyway.

Harmonize the namespace of fast TLS base pointer getter functions

Protect __lwp_getprivate_fast() with _RTLD_SOURCE, _LIBC_SOURCE and
__LIBPTHREAD_SOURCE__.

Include in this namespace <sys/tcl.h> and use __BEGIN_DECLS/__END_DECLS
for the sake of consistency.

Enhance ia64/mcontext defines

Stop mapping _UC_MACHINE_FP() to a register as it is not supported by CPU.
There is need to use in code __builtin_frame_address() inlined in the code
to get the frame pointer.

Return a constant value 0 instead. New value does not pretend to return
a meaningful value.

While there, fix the definition of _UC_MACHINE_SET_PC as it didn't contain
the pc argument in the definition.

branches: 1.8.2;
Update some of the _UC_MACHINE* macros even though gregs[] aren't tied to anything yet

branches: 1.7.2;
Add a dummy implementation of _UC_MACHINE_INTRV() for ia64

This fixes a build problem in src/tests/lib/libc/sys/t_ucontext.c.

This needs to be revisited once the port will get more mature.

Introduce _UC_MACHINE_FP() as a macro

_UC_MACHINE_FP() is a helper macro to extract from mcontext a frame pointer.

Don't rely on this interface as a compiler might strip frame pointer or
optimize it making this interface unreliable.


For hppa assume a small frame context, for larger frames FP might be located
in a different register (4 instead of 3).

For ia64 there is no strict frame pointer, and registers might rotate.
Reuse 79 following:

./gcc/config/ia64/ia64.h:#define HARD_FRAME_POINTER_REGNUM LOC_REG (79)

Once ia64 will mature, this should be revisited.

A macro can encapsulate a real function for extracting Frame Pointer on
more complex CPUs / ABIs.


For the remaining CPUs, reuse standard register as defined in appropriate ABI.

The direct users of this macro are LLVM and GCC with Sanitizers.

Proposed on tech-userlevel@.

Sponsored by <The NetBSD Foundation>

branches: 1.5.8;
PR port-ia64/51261

Add __fpregset_t __gregset_t _UC_MACHINE_PC stubs

branches: 1.4.2;
add a definition for _UC_MACHINE_PC which libasan wants.

XXX: i'm not 100% sure i picked the right register.

branches: 1.3.14;
Install headers needed for userland build.
Add missing accessors for pthread and TLS support - just dummies for now.

branches: 1.2.34; 1.2.44;
Remove clause 3 and 4 from TNF licenses

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.10; 1.1.14; 1.1.20; 1.1.74; 1.1.76; 1.1.78;
Initial import of arch/ia64 sources.
These sources are ported from FreeBSD/ia64 code.
See individual source files for credits.
In addition, code from NetBSD/alpha NetBSD/sparc64,
NetBSD/i386 and NetBSD/amd64 were used as templates,
along with my own additions.